Which of these adaptation(s) is (are) unique to mammals?
A) hair or fur
B) four types of upper and lower teeth that match up
C) sweat glands
D) secretion of milk by females
E) all of these
Correct Answer:
Verified
Q18: Hominids evolved when the climate was
A) wet
Q23: Egg-laying mammals _.
A) hatch fully developed
Q28: Q32: Q40: The primate fossil named Lucy was Q75: On the landmass that became South America Q76: Primates apparently arose from ancestral forms of Q80: The letter "B" in the above figure Q81: The first known primates were characterized as Q82: How long ago did the hominid evolutionary
A) a
A)monotremes
A)Insectivora,
A)arboreal
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